I don't have permissions Mark, I think you are the owner

I tried:

/msg ChanServ set #blacktie ENTRYMSG All blacktie discussions are being carried out over on #jbossts, please join us over there

This suggests you are the owner:

(05:30:01 PM) tomjenkinson: info #blacktie
(05:30:02 PM) ChanServ: (notice) Information on #blacktie:
(05:30:02 PM) ChanServ: (notice) Founder : nmcl
(05:30:02 PM) ChanServ: (notice) Registered : Dec 22 10:31:29 2008 (4 years, 12 weeks, 5 days, 06:57:28 ago)
(05:30:02 PM) ChanServ: (notice) Last used : Mar 15 15:29:07 2013 (5 days, 01:59:50 ago)
(05:30:02 PM) ChanServ: (notice) Mode lock : +ntc-slk
(05:30:02 PM) ChanServ: (notice) Flags : GUARD
(05:30:02 PM) ChanServ: (notice) *** End of Info ***